| Line 14... |
Line 14... |
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//#define EI_NIDENT 16
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//#define EI_NIDENT 16
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#define ARCH_64BITS
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#define ARCH_64BITS
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|
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#ifdef ARCH_64BITS
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#ifdef ARCH_64BITS
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typedef uint64_t Elf32_Addr;
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typedef uint64_t ElfAddr64;
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typedef uint64_t Elf32_Off;
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typedef uint64_t ElfOff64;
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#else
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#else
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typedef unsigned int Elf32_Addr;
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typedef unsigned int Elf32_Addr;
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typedef unsigned int Elf32_Off;
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typedef unsigned int Elf32_Off;
|
#endif
|
#endif
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typedef unsigned short Elf32_Half;
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typedef unsigned short ElfHalf;
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typedef signed int Elf32_Sword;
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typedef signed int ElfSword;
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typedef unsigned int Elf32_Word;
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typedef unsigned int ElfWord;
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typedef uint64_t ElfDWord;
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|
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typedef unsigned int ElfAddr32;
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typedef unsigned int ElfOff32;
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|
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static const char MAGIC_BYTES[] = {0x7f,'E','L','F',0};
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static const char MAGIC_BYTES[] = {0x7f,'E','L','F',0};
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|
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enum E_EI {
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enum E_EI {
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EI_MAG0,
|
EI_MAG0,
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| Line 48... |
Line 52... |
static const uint8_t ELFDATA2MSB = 2;
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static const uint8_t ELFDATA2MSB = 2;
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|
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static const uint8_t EV_NONE = 0; // Invalid version
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static const uint8_t EV_NONE = 0; // Invalid version
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static const uint8_t EV_CURRENT = 1; // Current version
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static const uint8_t EV_CURRENT = 1; // Current version
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//etype values:
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//etype values:
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static const Elf32_Half ET_NONE = 0; // no file type
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static const ElfHalf ET_NONE = 0; // no file type
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static const Elf32_Half ET_REL = 1; // rellocatable file
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static const ElfHalf ET_REL = 1; // rellocatable file
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static const Elf32_Half ET_EXEC = 2; // executable file
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static const ElfHalf ET_EXEC = 2; // executable file
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static const Elf32_Half ET_DYN = 3; // shared object file
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static const ElfHalf ET_DYN = 3; // shared object file
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static const Elf32_Half ET_CORE = 4; // core file
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static const ElfHalf ET_CORE = 4; // core file
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static const Elf32_Half ET_LOPROC = 0xff00; // Processor-specific
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static const ElfHalf ET_LOPROC = 0xff00; // Processor-specific
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static const Elf32_Half ET_HIPROC = 0xffff; // Processor-specific
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static const ElfHalf ET_HIPROC = 0xffff; // Processor-specific
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//emachine values:
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//emachine values:
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static const Elf32_Half EM_NONE = 0; // No machine
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static const ElfHalf EM_NONE = 0; // No machine
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static const Elf32_Half EM_M32 = 1; // AT&T WE 32100
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static const ElfHalf EM_M32 = 1; // AT&T WE 32100
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static const Elf32_Half EM_SPARC = 2; // SPARC
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static const ElfHalf EM_SPARC = 2; // SPARC
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static const Elf32_Half EM_386 = 3; // Intel 386
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static const ElfHalf EM_386 = 3; // Intel 386
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static const Elf32_Half EM_68K = 4; // Motorola 68000
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static const ElfHalf EM_68K = 4; // Motorola 68000
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static const Elf32_Half EM_88K = 5; // Motorola 88000
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static const ElfHalf EM_88K = 5; // Motorola 88000
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static const Elf32_Half EM_860 = 7; // Intel 80860
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static const ElfHalf EM_860 = 7; // Intel 80860
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static const Elf32_Half EM_MIPS = 8; // MIPS RS3000
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static const ElfHalf EM_MIPS = 8; // MIPS RS3000
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typedef struct ElfHeaderType
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struct Elf32_Ehdr {
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{
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unsigned char e_ident[EI_NIDENT];
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unsigned char e_ident[EI_NIDENT];
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Elf32_Half e_type; // Shared/Executable/Rellocalable etc
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ElfHalf e_type; // Shared/Executable/Rellocalable etc
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Elf32_Half e_machine; // SPARC, X86 etc
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ElfHalf e_machine; // SPARC, X86 etc
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Elf32_Word e_version; //
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ElfWord e_version; //
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uint64_t e_entry; // entry point
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ElfAddr32 e_entry; // entry point
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uint64_t e_phoff; // Program header offset
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ElfOff32 e_phoff; // Program header offset
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uint64_t e_shoff; // Section Header offset
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ElfOff32 e_shoff; // Section Header offset
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Elf32_Word e_flags;
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ElfWord e_flags;
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Elf32_Half e_ehsize;
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ElfHalf e_ehsize;
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Elf32_Half e_phentsize; // size of one entry in the Program header. All entries are the same size
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ElfHalf e_phentsize; // size of one entry in the Program header. All entries are the same size
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Elf32_Half e_phnum; // number of entries in a Program header
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ElfHalf e_phnum; // number of entries in a Program header
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Elf32_Half e_shentsize; // entry size in the section header table. all entries are the same size
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ElfHalf e_shentsize; // entry size in the section header table. all entries are the same size
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Elf32_Half e_shnum; // number of section header entries
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ElfHalf e_shnum; // number of section header entries
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Elf32_Half e_shstrndx;
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ElfHalf e_shstrndx;
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} ElfHeaderType;
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};
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|
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struct Elf64_Ehdr {
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unsigned char e_ident[EI_NIDENT];
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ElfHalf e_type; // Shared/Executable/Rellocalable etc
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ElfHalf e_machine; // SPARC, X86 etc
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ElfWord e_version; //
|
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ElfAddr64 e_entry; // entry point
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ElfOff64 e_phoff; // Program header offset
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ElfOff64 e_shoff; // Section Header offset
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ElfWord e_flags;
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ElfHalf e_ehsize;
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ElfHalf e_phentsize; // size of one entry in the Program header. All entries are the same size
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ElfHalf e_phnum; // number of entries in a Program header
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ElfHalf e_shentsize; // entry size in the section header table. all entries are the same size
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ElfHalf e_shnum; // number of section header entries
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ElfHalf e_shstrndx;
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};
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static ElfHalf SwapBytes(ElfHalf v) {
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v = ((v>>8)&0xff) | ((v&0xFF)<<8);
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return v;
|
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}
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static ElfWord SwapBytes(ElfWord v) {
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v = ((v >> 24) & 0xff) | ((v >> 8) & 0xff00)
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| ((v << 8) & 0xff0000) | ((v & 0xFF) << 24);
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return v;
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}
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static ElfDWord SwapBytes(ElfDWord v) {
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v = ((v >> 56) & 0xffull) | ((v >> 48) & 0xff00ull)
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| ((v >> 40) & 0xff0000ull) | ((v >> 32) & 0xff000000ull)
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| ((v << 8) & 0xff000000ull) | ((v << 16) & 0xff0000000000ull)
|
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| ((v << 24) & 0xff0000000000ull) | ((v << 32) & 0xff00000000000000ull);
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return v;
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}
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class ElfHeaderType {
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public:
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ElfHeaderType(uint8_t *img) {
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pimg_ = img;
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isElf_ = true;
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for (int i = 0; i < 4; i++) {
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if (pimg_[i] != MAGIC_BYTES[i]) {
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isElf_ = false;
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}
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}
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is32b_ = pimg_[EI_CLASS] == ELFCLASS32;
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isMsb_ = pimg_[EI_DATA] == ELFDATA2MSB;
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if (is32b_) {
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Elf32_Ehdr *h = reinterpret_cast<Elf32_Ehdr *>(pimg_);
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if (isMsb_) {
|
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e_shoff_ = SwapBytes(h->e_shoff);
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e_shnum_ = SwapBytes(h->e_shnum);
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e_phoff_ = SwapBytes(h->e_phoff);
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} else {
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e_shoff_ = h->e_shoff;
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e_shnum_ = h->e_shnum;
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e_phoff_ = h->e_phoff;
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}
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} else {
|
|
Elf64_Ehdr *h = reinterpret_cast<Elf64_Ehdr *>(pimg_);
|
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if (isMsb_) {
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e_shoff_ = SwapBytes(h->e_shoff);
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e_shnum_ = SwapBytes(h->e_shnum);
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e_phoff_ = SwapBytes(h->e_phoff);
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} else {
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e_shoff_ = h->e_shoff;
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e_shnum_ = h->e_shnum;
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e_phoff_ = h->e_phoff;
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}
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}
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}
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virtual bool isElf() { return isElf_; }
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virtual bool isElf32() { return is32b_; }
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virtual bool isElfMsb() { return isMsb_; }
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virtual uint64_t get_shoff() { return e_shoff_; }
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virtual ElfHalf get_shnum() { return e_shnum_; }
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virtual uint64_t get_phoff() { return e_phoff_; }
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protected:
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uint8_t *pimg_;
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bool isElf_;
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bool is32b_;
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bool isMsb_;
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uint64_t e_shoff_;
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ElfHalf e_shnum_;
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uint64_t e_phoff_;
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};
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//sh_type:
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//sh_type:
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static const Elf32_Word SHT_NULL = 0; // section header is inactive
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static const ElfWord SHT_NULL = 0; // section header is inactive
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static const Elf32_Word SHT_PROGBITS = 1; // section with CPU instructions
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static const ElfWord SHT_PROGBITS = 1; // section with CPU instructions
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static const Elf32_Word SHT_SYMTAB = 2; // section contains symbols table (also as SHT_DYNSIM)
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static const ElfWord SHT_SYMTAB = 2; // section contains symbols table (also as SHT_DYNSIM)
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static const Elf32_Word SHT_STRTAB = 3; // section holds string table
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static const ElfWord SHT_STRTAB = 3; // section holds string table
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static const Elf32_Word SHT_RELA = 4; // section with relocation data
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static const ElfWord SHT_RELA = 4; // section with relocation data
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static const Elf32_Word SHT_HASH = 5; // section with hash table. Must be for the dynamic lib
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static const ElfWord SHT_HASH = 5; // section with hash table. Must be for the dynamic lib
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static const Elf32_Word SHT_DYNAMIC = 6; // section holds information for dynamic linking.
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static const ElfWord SHT_DYNAMIC = 6; // section holds information for dynamic linking.
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static const Elf32_Word SHT_NOTE = 7;
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static const ElfWord SHT_NOTE = 7;
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static const Elf32_Word SHT_NOBITS = 8; // section with not initialized data
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static const ElfWord SHT_NOBITS = 8; // section with not initialized data
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static const Elf32_Word SHT_REL = 9;
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static const ElfWord SHT_REL = 9;
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static const Elf32_Word SHT_SHLIB = 10;
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static const ElfWord SHT_SHLIB = 10;
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static const Elf32_Word SHT_DYNSYM = 11; // section contains debug symbol table
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static const ElfWord SHT_DYNSYM = 11; // section contains debug symbol table
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static const Elf32_Word SHT_LOPROC = 0x70000000;
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static const ElfWord SHT_LOPROC = 0x70000000;
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static const Elf32_Word SHT_HIPROC = 0x7fffffff;
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static const ElfWord SHT_HIPROC = 0x7fffffff;
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static const Elf32_Word SHT_HIUSER = 0xffffffff;
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static const ElfWord SHT_HIUSER = 0xffffffff;
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//sh_flags:
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//sh_flags:
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static const Elf32_Word SHF_WRITE = 0x1; // section contains data that should be writable during process execution.
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static const ElfWord SHF_WRITE = 0x1; // section contains data that should be writable during process execution.
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static const Elf32_Word SHF_ALLOC = 0x2; // section occupies memory during process execution.
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static const ElfWord SHF_ALLOC = 0x2; // section occupies memory during process execution.
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static const Elf32_Word SHF_EXECINSTR = 0x4; // section contains executable machine instructions.
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static const ElfWord SHF_EXECINSTR = 0x4; // section contains executable machine instructions.
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static const Elf32_Word SHF_MASKPROC = 0xf0000000; // processor-specific sematic
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static const ElfWord SHF_MASKPROC = 0xf0000000; // processor-specific sematic
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|
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struct Elf32_Shdr {
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ElfWord sh_name;//Index in a header section table (gives name of section)
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ElfWord sh_type;
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ElfWord sh_flags; /* SHF_... */
|
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ElfAddr32 sh_addr;
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ElfOff32 sh_offset;
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ElfWord sh_size;
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ElfWord sh_link;
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ElfWord sh_info;
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ElfWord sh_addralign;
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ElfWord sh_entsize;
|
|
};
|
|
|
typedef struct SectionHeaderType
|
struct Elf64_Shdr {
|
{
|
ElfWord sh_name;//Index in a header section table (gives name of section)
|
Elf32_Word sh_name;//Index in a header section table (gives name of section)
|
ElfWord sh_type;
|
Elf32_Word sh_type;
|
ElfDWord sh_flags;
|
uint64_t sh_flags;
|
ElfAddr64 sh_addr;
|
uint64_t sh_addr;
|
ElfOff64 sh_offset;
|
uint64_t sh_offset;
|
ElfDWord sh_size;
|
uint64_t sh_size;
|
ElfWord sh_link;
|
Elf32_Word sh_link;
|
ElfWord sh_info;
|
Elf32_Word sh_info;
|
ElfDWord sh_addralign;
|
uint64_t sh_addralign;
|
ElfDWord sh_entsize;
|
uint64_t sh_entsize;
|
};
|
} SectionHeaderType;
|
|
|
class SectionHeaderType {
|
|
public:
|
|
SectionHeaderType(uint8_t *img, ElfHeaderType *h) {
|
|
if (h->isElf32()) {
|
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Elf32_Shdr *sh = reinterpret_cast<Elf32_Shdr *>(img);
|
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if (h->isElfMsb()) {
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sh_name_ = SwapBytes(sh->sh_name);
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sh_type_ = SwapBytes(sh->sh_type);
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sh_flags_ = SwapBytes(sh->sh_flags);
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sh_addr_ = SwapBytes(sh->sh_addr);
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sh_offset_ = SwapBytes(sh->sh_offset);
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sh_size_ = SwapBytes(sh->sh_size);
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sh_entsize_ = SwapBytes(sh->sh_entsize);
|
|
} else {
|
|
sh_name_ = sh->sh_name;
|
|
sh_type_ = sh->sh_type;
|
|
sh_flags_ = sh->sh_flags;
|
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sh_addr_ = sh->sh_addr;
|
|
sh_offset_ = sh->sh_offset;
|
|
sh_size_ = sh->sh_size;
|
|
sh_entsize_ = sh->sh_entsize;
|
|
}
|
|
} else {
|
|
Elf64_Shdr *sh = reinterpret_cast<Elf64_Shdr *>(img);
|
|
if (h->isElfMsb()) {
|
|
sh_name_ = SwapBytes(sh->sh_name);
|
|
sh_type_ = SwapBytes(sh->sh_type);
|
|
sh_flags_ = SwapBytes(sh->sh_flags);
|
|
sh_addr_ = SwapBytes(sh->sh_addr);
|
|
sh_offset_ = SwapBytes(sh->sh_offset);
|
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sh_size_ = SwapBytes(sh->sh_size);
|
|
sh_entsize_ = SwapBytes(sh->sh_entsize);
|
|
} else {
|
|
sh_name_ = sh->sh_name;
|
|
sh_type_ = sh->sh_type;
|
|
sh_flags_ = sh->sh_flags;
|
|
sh_addr_ = sh->sh_addr;
|
|
sh_offset_ = sh->sh_offset;
|
|
sh_size_ = sh->sh_size;
|
|
sh_entsize_ = sh->sh_entsize;
|
|
}
|
|
}
|
|
}
|
|
virtual ElfWord get_name() { return sh_name_; }
|
|
virtual ElfWord get_type() { return sh_type_; }
|
|
virtual uint64_t get_offset() { return sh_offset_; }
|
|
virtual uint64_t get_size() { return sh_size_; }
|
|
virtual uint64_t get_addr() { return sh_addr_; }
|
|
virtual uint64_t get_flags() { return sh_flags_; }
|
|
virtual uint64_t get_entsize() { return sh_entsize_; }
|
|
protected:
|
|
ElfWord sh_name_;
|
|
ElfWord sh_type_;
|
|
uint64_t sh_offset_;
|
|
uint64_t sh_size_;
|
|
uint64_t sh_addr_;
|
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uint64_t sh_flags_;
|
|
uint64_t sh_entsize_;
|
|
};
|
|
|
|
|
#define ELF32_ST_BIND(i) ((i)>>4)
|
#define ELF32_ST_BIND(i) ((i)>>4)
|
#define ELF32_ST_TYPE(i) ((i)&0xf)
|
#define ELF32_ST_TYPE(i) ((i)&0xf)
|
#define ELF32_ST_INFO(b,t) (((b)<<4) + ((t)&0xf))
|
#define ELF32_ST_INFO(b,t) (((b)<<4) + ((t)&0xf))
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| Line 138... |
Line 304... |
static const unsigned char STT_SECTION = 3;
|
static const unsigned char STT_SECTION = 3;
|
static const unsigned char STT_FILE = 4;
|
static const unsigned char STT_FILE = 4;
|
static const unsigned char STT_LOPROC = 13;
|
static const unsigned char STT_LOPROC = 13;
|
static const unsigned char STT_HIPROC = 15;
|
static const unsigned char STT_HIPROC = 15;
|
|
|
typedef struct SymbolTableType
|
struct Elf32_Sym {
|
{
|
ElfWord st_name;
|
Elf32_Word st_name;
|
ElfAddr32 st_value;
|
uint8_t st_info;
|
ElfWord st_size;
|
uint8_t st_other;
|
unsigned char st_info;
|
Elf32_Half st_shndx;
|
unsigned char st_other;
|
uint64_t st_value;
|
ElfHalf st_shndx;
|
uint64_t st_size;
|
};
|
} SymbolTableType;
|
|
|
struct Elf64_Sym {
|
|
ElfWord st_name;
|
|
unsigned char st_info;
|
|
unsigned char st_other;
|
|
ElfHalf st_shndx;
|
|
ElfAddr64 st_value;
|
|
ElfDWord st_size;
|
|
};
|
|
|
|
class SymbolTableType {
|
|
public:
|
|
SymbolTableType(uint8_t *img, ElfHeaderType *h) {
|
|
if (h->isElf32()) {
|
|
Elf32_Sym *st = reinterpret_cast<Elf32_Sym *>(img);
|
|
if (h->isElfMsb()) {
|
|
st_name_ = SwapBytes(st->st_name);
|
|
st_value_ = SwapBytes(st->st_value);
|
|
st_size_ = SwapBytes(st->st_size);
|
|
} else {
|
|
st_name_ = st->st_name;
|
|
st_value_ = st->st_value;
|
|
st_size_ = st->st_size;
|
|
}
|
|
st_info_ = st->st_info;
|
|
} else {
|
|
Elf64_Sym *st = reinterpret_cast<Elf64_Sym *>(img);
|
|
if (h->isElfMsb()) {
|
|
st_name_ = SwapBytes(st->st_name);
|
|
st_value_ = SwapBytes(st->st_value);
|
|
st_size_ = SwapBytes(st->st_size);
|
|
} else {
|
|
st_name_ = st->st_name;
|
|
st_value_ = st->st_value;
|
|
st_size_ = st->st_size;
|
|
}
|
|
st_info_ = st->st_info;
|
|
}
|
|
}
|
|
virtual ElfWord get_name() { return st_name_; }
|
|
virtual uint64_t get_value() { return st_value_; }
|
|
virtual uint64_t get_size() { return st_size_; }
|
|
virtual unsigned char get_info() { return st_info_; }
|
|
protected:
|
|
ElfWord st_name_;
|
|
unsigned char st_info_;
|
|
uint64_t st_value_;
|
|
uint64_t st_size_;
|
|
};
|
|
|
|
|
//p_type:
|
//p_type:
|
static const Elf32_Word PT_NULL = 0;
|
static const ElfWord PT_NULL = 0;
|
static const Elf32_Word PT_LOAD = 1;
|
static const ElfWord PT_LOAD = 1;
|
static const Elf32_Word PT_DYNAMIC = 2;
|
static const ElfWord PT_DYNAMIC = 2;
|
static const Elf32_Word PT_INTERP = 3;
|
static const ElfWord PT_INTERP = 3;
|
static const Elf32_Word PT_NOTE = 4;
|
static const ElfWord PT_NOTE = 4;
|
static const Elf32_Word PT_SHLIB = 5;
|
static const ElfWord PT_SHLIB = 5;
|
static const Elf32_Word PT_PHDR = 6;
|
static const ElfWord PT_PHDR = 6;
|
static const Elf32_Word PT_LOPROC = 0x70000000;
|
static const ElfWord PT_LOPROC = 0x70000000;
|
static const Elf32_Word PT_HIPROC = 0x7fffffff;
|
static const ElfWord PT_HIPROC = 0x7fffffff;
|
|
|
typedef struct ProgramHeaderType
|
typedef struct ProgramHeaderType64
|
{
|
{
|
uint32_t p_type;
|
uint32_t p_type;
|
uint32_t p_offset;
|
uint32_t p_offset;
|
uint64_t p_vaddr;
|
uint64_t p_vaddr;
|
uint64_t p_paddr;
|
uint64_t p_paddr;
|
uint64_t p_filesz;
|
#ifdef ARCH_64BITS
|
uint64_t p_memsz;
|
ElfDWord p_filesz;
|
uint64_t p_flags;
|
ElfDWord p_memsz;
|
uint64_t p_align;
|
ElfDWord p_flags;
|
} ProgramHeaderType;
|
ElfDWord p_align;
|
|
#else
|
|
Elf32_Word p_filesz;
|
|
Elf32_Word p_memsz;
|
|
Elf32_Word p_flags;
|
|
Elf32_Word p_align;
|
|
#endif
|
|
} ProgramHeaderType64;
|
|
|
|
typedef struct ProgramHeaderType32
|
|
{
|
|
uint32_t p_type;
|
|
uint32_t p_offset;
|
|
ElfAddr32 p_vaddr;
|
|
ElfAddr32 p_paddr;
|
|
ElfWord p_filesz;
|
|
ElfWord p_memsz;
|
|
ElfWord p_flags;
|
|
ElfWord p_align;
|
|
} ProgramHeaderType32;
|
|
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} // namespace debugger
|
} // namespace debugger
|
|
|
#endif // __DEBUGGER_ELF_TYPES_H__
|
#endif // __DEBUGGER_ELF_TYPES_H__
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